When I was around 5 years old, my mom started me running with the single focus of having me burn off some of my energy; I would run around the yard or house long enough to feel a little tired. As I got older, my single focus was still running, but this time I was doing it to get in shape for soccer. When I started running marathons, my single focus was more pronounced -run to get the miles in, run far enough to train your body to push past that infamous "wall," run, run, and run.
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